當肝在功能上是消化系統(tǒng)的一部分時，那么它在血液循環(huán)中也起著非常重要的作用。肝被稱為心臟的接待室，因為它通過門靜脈收集和運送所有胃腸的血液到右心。肝通過兩個血管系統(tǒng)接受血液，即門靜脈和肝動脈。

　　While the liver is technically part of the gastrointestinal system， it also plays an important role in blood circulation. The liver has been called the antechamber of the heart because it collects and processes all of the gastrointestinal blood through the portal vein and delivers it to the right side of the heart. The liver receives blood through two vascular systems， the portal vein and hepatic artery.